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3 years ago

12

Mathematics

1 answer:

hoa [83]3 years ago

8 0

Answer:

$\dfrac{x}{2}=25.5$

Step-by-step explanation:

Let the number be x.

Peter halves the number and gets an answer of 25.5.

It means,

Half of x equals 25.5. So,

$\dfrac{1}{2}x=25.5$

$\dfrac{x}{2}=25.5$

Hence, the required equation is $\dfrac{x}{2}=25.5$ .

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on monday, a parking garage was 60% full, with 120 cars parked. on tuesday, there were 30 more cars parked jn the garage than th

vlada-n [284]

Answer:

75%

Step-by-step explanation:

we know that 60% of x is 120. we can rewrite this to .6x = 120, to get x we divide both sides by .6, so x = 200. now 120 + 30 = 150. then we divide 150 out of 200 which is .75 it 75%

8 0

3 years ago

Enzo is studying the black bear population at a large national park.

Naddik [55]

Answer:

2,973

Step-by-step explanation:

The black bear population B(t), in the park is modeled by the following function:

$B(t) = 2500 \cdot 2^{0.01t}$

Where t is the time(in years) elapsed since the beginning of the study.

We want to determine the black bear population in 25 years time, t=25.

$B(25) = 2500 \cdot 2^{0.01*25}\\=2973.02\\\approx 2973$

There will be 2,973 black bears in 25 years time.

4 0

3 years ago

Salut! |4x^2+9x-9|=0 X= ? Multumesc in avans :D

Afina-wow [57]

X=3 or -3/4.Îmi pare rău că nu mi-am arătat munca

8 0

3 years ago

Please help me if you can! Thank you (:

AnnyKZ [126]

Answer:

The value of f(2) would be -40.

Step-by-step explanation:

Given function is,

$f(x) = 2x^3 - 3x^2 - 18x - 8$

Substituting x = 2 in the above function,

We get,

$f(2) = 2(2)^3 - 3(2)^2 - 18(2) - 8$

$=2(8) - 3(4) - 36 - 8$

$=16 - 12 - 44$

$\implies f(2)= -40$

Hence, the value of f(2) would be -40.

4 0

3 years ago

Use the distributive property to write the following expressions in expanded form. 5(7h+3m)

lilavasa [31]

Answer:

35h + 15m

Step-by-step explanation:

Step 1: Distribute

5(7h + 3m)

35h + 15m

Answer: 35h + 15m

7 0

3 years ago